CHARLOTTESVILLE, Va., April 27, 2006 (PRIMEZONE) -- Northrop Grumman Corporation's (NYSE:NOC) Sperry Marine business unit has introduced a new heading management system for ships.

The NAVITWIN IV Heading Management System monitors and controls all heading sources of a multi-compass heading reference system to provide increased safety and efficiency in marine navigation. The system continuously monitors and displays the data from up to three true heading sources and one magnetic compass on a bright, color, high-resolution LCD display. It monitors the difference between any two of the displayed headings and actuates an audible and visible alarm if the difference between the two exceeds a preset threshold. NAVITWIN IV also provides automatic correction of magnetic deviation and variation.

The NAVITWIN IV, which replaces Sperry Marine's NAVITWIN III compass monitor, has been type-approved to European Council Directive 96/98/EC by the German certification authority Bundesamt fur Seeschiffahrt & Hydrographie.

Sperry Marine, headquartered in Charlottesville, Va., and with major engineering and support offices in New Malden, United Kingdom and Hamburg, Germany, provides smart navigation and ship control solutions for the international marine industry with customer service and support through offices in 16 countries, sales representatives in 47 countries and authorized service depots in more than 250 locations worldwide.

Northrop Grumman Corporation is a global defense company headquartered in Los Angeles, Calif. Northrop Grumman provides technologically advanced, innovative products, services and solutions in systems integration, defense electronics, information technology, advanced aircraft, shipbuilding and space technology. With approximately 125,000 employees and operations in all 50 states and 25 countries, Northrop Grumman serves U.S. and international military, government and commercial customers.

For commercial sales inquiries, contact Northrop Grumman Sperry Marine by phone, +1 (434) 974-2656 or by e-mail, For military sales inquiries, call +1 (434) 974-2134 or e-mail Visit our Web site at .

  CONTACT:  Jim Rhodes 
          Rhodes Communications
          +1 (757) 451-0602

          Debbi McCallam
          Northrop Grumman Electronic Systems
          +1 (410) 765-1521